Matches 1 - 37 out of 37


Match Document Document Title
8259218 Photographing module with optical zoom  
This invention provides a photographing module with optical zoom, which at least includes a focusing lens assembly, a zoom lens assembly, a focusing lens actuator, a zoom lens actuator, a photo...
8023002 Imager, imaging circuit, and image processing circuit  
The number of channels is changed in accordance with an operation mode in an image pickup apparatus. An image-pickup control unit 240 determines the number of operation channels W in accordance...
7567301 Flat panel television  
According to the invention, performing torn curb correction processing by referring to plural correction tables 113a to 113c for plural display areas A, B, C, D, E, and P makes it possible to...
7456873 Image signal processing system and camera for obtaining luminance-system signal and color-system signal  
Briefly, a camera according to the present invention includes a first signal processing system having a first gamma conversion processing unit for subjecting an output from an image pick-up device...
7064773 Display apparatus  
A display apparatus is constructed to make a plurality of light beams of mutually different colors incident to a display element and modulate the beams of the respective colors by the display...
6535255 Illumination intensity correcting circuit  
An illumination intensity correcting circuit including a curve fitting circuit formed by differential amplifier circuits and a load resistor, wherein the amplification factor of the curve fitting...
6501450 System for contrast control using linearized variable network of parallel resistive terms  
A system for controlling contrast of a liquid crystal display is provided by means of a parallel network of resistors. A processor controls general operations of the system and is configured to...
6271891 Video signal processing circuit providing optimum signal level for inverse gamma correction  
A video signal processing circuit in which nearly 100% of a largest possible dynamic range can be used, desired contrast is obtained, and desired brightness characteristics are obtained by an...
6215529 Gamma compensation apparatus  
Aiming to improve color reproducibility of a red part having high color saturation, a gamma compensation apparatus of the present invention is composed of a bending point setting block 100a and a...
6166781 Non-linear characteristic correction apparatus and method therefor  
A non-linear response correction apparatus and method reduce look up table size and output error. In one embodiment, a range of an N-bit input signal is split into two or more sectors, based on a...
6160532 Digital gamma correction circuit, gamma correction method, and a liquid crystal display apparatus and electronic device using said digital gamma correction circuit and gamma correction method  
Image data to which gamma correction for a CRT has been applied is digitally gamma corrected to image data based on an applied voltage-transmittance characteristic of a liquid crystal display...
6073158 System and method for processing multiple received signal sources  
A system and method for time slicing multiple received data streams utilizing multiple processors in such a manner as to ensure that all processors are running at full capability and are...
5889565 Method and apparatus for improving the color rendition of color television receivers  
A method and apparatus for improving the color rendition of a color television receiver includes variable gamma circuits for exponentially correcting the individual color signals. A user control...
5610666 Gamma correcting circuit  
A gamma correcting circuit has a plurality of differential amplifiers having respective input terminals for being supplied with a video signal and respective output terminals connected in common....
5398076 Gamma correcting processing of video signals  
The present invention relates to a method of processing video signals comprised of gamma correcting pixel data of a first signal, gamma correcting pixel data of a second signal, adding the gamma...
5394195 Method and apparatus for performing dynamic gamma contrast control  
Ordinarily, television signals are subjected to gamma correction at the source to compensate for non-linearities in CRT-based displays in accordance with set standards. However, it has been found...
5349389 Video attenuator with output combined with signal from non-linear shunt branch to provide gamma correction and high frequency detail enhancement  
A video input signal is applied to a bridged-T attenuator which includes a non-linear element in the shunt branch thereof that provides increasing attenuation as the input signal increases to...
5175621 Gamma correction circuit and method thereof  
Non-linear outputs xA and xB for input signals x are calculated by referring to look-up tables, in which pairs of input and output signals with respect to gamma coefficients A and B different from...
5003394 Dynamic video system including automatic contrast and "white-stretch" processing sections  
A television system is disclosed including sections for limiting peak white drive to a display device (e.g., of the direct view of projection type) while maintaining relatively high subjective...
4575758 Method of displaying on a viewing screen the output signals from a detector sensitive to radiation  
In displaying on a viewing screen an image generated by output signals from a radiation-sensitive detector, e.g., an infrared detector, it may occur that weakly contrasting details in the image...
4568978 Method of a circuit arrangement for producing a gamma corrected video signal  
A gamma correction factor is applied to a video signal without need of the normally used multiplier by forming the logarithm of the logarithm of the video signal and algebraically adding this...
4558363 Gamma correction circuit  
A gamma correction circuit to adjust the output of a video signal to the particular picture tube used including an exponential impedance changing element for gamma-correcting a non-gamma corrected...
4503464 Gamma correction circuit for television  
A gamma correction circuit for television, incorporating a gamma corrector (9) having an output (10) with a gamma-corrected signal (S2), a first superposition stage (16) for supplying, relative to...
4489349 Video brightness control circuit  
A control circuit for controlling the relative brightness of a video signal includes an average picture level (APL) detector to measure the average brightness of the video signal and a brightness...
4480268 Gamma correction circuit  
A gamma correction circuit is provided with a first circuit including a first linear element and a first non-linear element connected in series in the above order and a second circuit including a...
4295161 Keyed noise filter in a television receiver  
A video signal channel in a television receiver includes a keyed filter, followed by a keyed automatic brightness control circuit for establishing a desired black or blanking level for the video...
4249208 Gamma correction circuit for a video signal and television camera suitable therefor  
A gamma correction circuit for a video signal which is simple to be integrated in a semiconductor body and which has a minimum of adjusting points in a simple adjusting procedure. The signal whose...
4241362 Circuit for increasing a signal slope of a periodically occurring signal mainly near a reference level  
A circuit for increasing, mainly near a reference level, a signal slope of a periodically occurring signal, particularly at the black level of a television picture signal. To this end the...
4227216 Gamma correction circuit for television  
A television gamma correction circuit in which a gamma corrector supplies an output signal having a minimum gamma equal to two, from which, relative to a linear input signal which is limited via a...
4203131 Predictable automatic brightness control circuit in a video signal image reproducing system  
Brightness control apparatus for a video signal image reproducing system including a video signal processing channel, a kinescope driver for supplying video signals to an image reproducing...
4057828 Contrast compression circuits  
An amplitude compression circuit for de-emphasizing variations in amplitude of a wide band electrical signal. A gamma circuit is used to compress amplitude variations in the wide band signal. A...
3752905 GAMMA CONTROL IN THE LUMINANCE CHANNEL OF A COLOR TELEVISION TRANSMITTER  
The invention relates to a method and apparatus for transmitting a television picture signal having a high contrast range. The method involves integrating at least a portion of the television...
3588338 GAMMA CORRECTION AND SHADING MODULATION CIRCUITRY FOR A TELEVISION CAMERA  
3534168 GAMMA-CORRECTION CIRCUIT  
3458652 GAMMA CORRECTION CIRCUIT  
3341654 Television signal correcting circuit arrangements  
3281531 Gamma distortion correction circuit  

Matches 1 - 37 out of 37